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P3022

CVT Secondary Pulley Speed Sensor Circuit

2012-2015 BMW 320i 2.0L I4 Turbo N20

High SeverityPowertrainGeneric (SAE)

Description

The secondary (output) pulley speed sensor in the CVT is malfunctioning.

Symptoms

  • Check Engine Light
  • Incorrect speed display
  • Transmission ratio errors
  • Harsh ratio changes
  • Limp mode
  • No speedometer reading

Common Causes

  • Faulty secondary speed sensor
  • Damaged wiring
  • Tone ring contamination
  • Corroded connector
  • Sensor air gap incorrect

Diagnostic Steps

  1. Read secondary pulley speed PID
  2. Test sensor resistance
  3. Inspect wiring and connector
  4. Check tone ring condition
  5. Compare to vehicle speed sensor

Repair Notes

Replace secondary pulley speed sensor.

Related Codes

P0722Output Speed Sensor Circuit No SignalP3020CVT Belt/Chain Slip DetectedP3021CVT Primary Pulley Speed Sensor Circuit

Other Powertrain Codes

P3022 on Other Vehicles

Common Questions

What does code P3022 mean on a 2012-2015 BMW 320i?

P3022 stands for "CVT Secondary Pulley Speed Sensor Circuit". The secondary (output) pulley speed sensor in the CVT is malfunctioning.

What are the symptoms of P3022 on a BMW 320i?

Common symptoms of P3022 include: Check Engine Light, Incorrect speed display, Transmission ratio errors, Harsh ratio changes, Limp mode, No speedometer reading.

What causes P3022 on a 2012-2015 BMW 320i?

Common causes of P3022 include: Faulty secondary speed sensor, Damaged wiring, Tone ring contamination, Corroded connector, Sensor air gap incorrect.

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